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Questions and Answers
Match the following geological terms with their definitions:
Match the following geological terms with their definitions:
Focus = The point beneath Earth’s surface where rock breaks and causes an earthquake Epicenter = The point on the Earth’s surface directly above the focus P wave = A type of seismic wave that compresses and expands S wave = A type of seismic wave that moves side to side and up and down
Match the following volcanic terms with their definitions:
Match the following volcanic terms with their definitions:
Vent = The opening in a volcano through which magma and gases escape Shield Volcano = A gently sloping mountain made of lava released from nonexplosive eruptions
Match the following seismic waves with their movements:
Match the following seismic waves with their movements:
P wave = Compresses and expands S wave = Moves side to side and up and down
Which type of seismic wave compresses and expands?
Which type of seismic wave compresses and expands?
What is the opening in a volcano through which magma and gases escape called?
What is the opening in a volcano through which magma and gases escape called?
What is a shield volcano made of?
What is a shield volcano made of?
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Study Notes
Volcanic Terms
- A volcano's opening through which magma and gases escape is called a vent.
- A shield volcano is made of gently sloping shape and built by eruption of fluid lava flows.
Seismic Waves
- There are types of seismic waves that compress and expand, called P-waves (Primary waves).
- P-waves compress and expand in the direction of wave travel.
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